NTE1956
Integrated Circuit
Positive 3 Terminal Voltage Regulator,
Low Dropout Voltage, 24V, 1A
Description:
The NTE1956 is a positive voltage regulator in a TO220 type package with a low input/output voltage.
This device is suitable for low鈥搗oltage, battery鈥揹riven equipment, and home appliances and industrial
equipment with great fluctuation of the supply voltage.
Features:
D
Minimum Input/Output Voltage Difference: 0.5V Typ
D
On鈥揅hip Overcurrent Limiter
D
On鈥揅hip Thermal Protection Circuit
D
On鈥揅hip Inrush Current Protection Circuit at the time of Input Voltage Start鈥揢p
D
On鈥揅hip Input Short鈥揅ircuit Protection Circuit (When the Input Pin is Short鈥揅ircuited to the
Ground, the Circuit Between Pin1 and Pin3 is Shut Down to Prevent Current Flow)
Applications:
D
Power Supply Equipment
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Supply Voltage (Note 1), V
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V
Supply Current (Note 2), I
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4A
Power Dissipation (Note 3), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15W
Operating Ambient Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +85擄C
Storage Junction Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Thermal Resistance, Junction鈥搕o鈥揂mbient, R
thJA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65擄C/W
Thermal Resistance, Junction鈥搕o鈥揅ase, R
thJC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5擄C/W
Note 1. At the application of V
IN
= 30V, the overvoltage protection may be operated by the ASO
protection circuit, leading to the output shut down.
Note 2. The current value does not exceed this criterion because of the on鈥揷hip current limiter.
Note 3. The internal circuit shuts off the output when T
J
鈮?/div>
+150擄C (design value).
Recommended Operating Conditions:
(I
O
= 500mA, T
A
= +25擄C unless otherwise specified)
Parameter
Operating Supply Voltage Range
Symbol
V
IN
Test Conditions
Min
21.5
Typ
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